On 05/13/2013 07:36 PM, Ethan Furman wrote:
Here's your code, revamped. I did make a slight change in the meta -- I moved the name assignment above the __init__ call so it's available in __init__.--8<-------------------------------------------------------- from ref435 import Enum from flags import IntET class NIE1( IntET, Enum ): x = 1 y = 2 z = 4 def __new__(cls, value): member = IntET.__new__(cls, 'temp', value) member._value = value return member def __init__(self, value): self._etname = self._name print( repr( NIE1.x.value )) print( repr( NIE1.x + NIE1.y )) print( repr( NIE1.x + ~ NIE1.y)) print( repr( NIE1.x + ~ 2 )) print( repr( NIE1.z * 3 )) print( repr( NIE1( 1 ) + NIE1(2))) print( repr( NIE1( IntET('NIE1.x', 1 )) + NIE1(2))) --8<-------------------------------------------------------- and my results: 1 IntET('(x + y)', 3) IntET('(x + ~y)', -2) IntET('(x + -3)', -2) IntET('(z * 3)', 12) IntET('(x + y)', 3) IntET('(x + y)', 3)
Forget to mention the good part -- in the custom __new__ you are able to set the value to whatever you want (not a big deal in this case, but if you had several parameters going in you could still make _value be a single, simple int).
-- ~Ethan~ _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
